Rathenow-Senske-Nauen KB 0-6-2 Locomotives in Germany


Class Details by Steve Llanso of Sweat House Media

Class K34.5 / 99 4511 (Locobase 12578)

Data from [link], last accessed 14 May 2011. For the RSN, see [link] (Locobase availed himself of Google's translation.) Works numbers were 4111-4113 in 1899.

Known as the Stillen Pauline, this arterial narrow-gauge railway ran over 31.5 km (19.6 sm) from the first-named town to the second in the Berlin area. A branch ran 20.1 km (12.5 sm) from Senske to Paulinenaue. All the twists and turns in the line that allowed the RSN to serve these cities led to the additional nickname of Krumme Pauline ("Crooked Pauline"). The line was very flat, in some cases crossing marshy ground on embankments.

Wikipedia's account describes a successful railroad that served local beet growers as well as many residents of the town on the route. Its decline began in World War One and continued slowly as the line was supported by subsidies. World War Two led to a resurgence as private cars were mostly unavailable. East Germany authorities maintained passenger service over a shorter distance until 1961.

Their first three locomotives were delivered with a Krauss-Helmholz bogie joining the rear adhesive axle with the trailing truck under the firebox.

Locobase 6540 shows what happened when the DDR rebuilt the 3 as an 0-6-0T.


Class K34.5 / 99 4512 (Locobase 6541)

Data from Christian Lindecke's [link] (visited 27 May 2005). See also [link], last accessed 11 April 1 2010. O & K works numbers were 845-846 in 1901.

These radial tanks followed the number 3 (see Locobase 6540) into service two years later. It had larger cylinders, slightly larger drivers that had the combined effect of raising the tractive effort. It was lighter because of the smaller water tank. It also used an outside frame and a trailing Bissell truck. Possibly because of a bouncy ride, the pair were known as Rÿchelanna or Springender Hirsch (leaping deer).

#5 was renumbered 99 4512 by the East German Deutsche Reichsbahn and operated until 1964.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassK34.5 / 99 4511K34.5 / 99 4512
Locobase ID12578 6541
RailroadRathenow-Senske-Nauen KBRathenow-Senske-Nauen KB
CountryGermanyGermany
Whyte0-6-2T0-6-2T
Number in Class32
Road Numbers1-3 / 99 4511-99 45134-5 / 99 4512
Gauge75 cm75 cm
Number Built32
BuilderKraussOrenstein & Koppel
Year18991901
Valve GearHeusingerLenker
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)10.83 / 3.30 9.65 / 2.94
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)10.83 / 3.30 9.65 / 2.94
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)30,865 / 14,00028,660 / 13,000
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)462 / 1.75422 / 1.60
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 0.70 / 1 0.70 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)26.80 / 68027.60 / 700
Boiler Pressure (psi / kPa)174 / 1200174 / 1200
High Pressure Cylinders (dia x stroke) (in / mm)10.24" x 11.81" / 260x30010.24" x 13.78" / 260x350
Tractive Effort (lbs / kg)6834 / 3099.857743 / 3512.17
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)31.96 / 2.9731.20 / 2.90
Grate Area (sq ft / m2) 5.92 / 0.55 6.67 / 0.62
Evaporative Heating Surface (sq ft / m2)317 / 29.50336 / 31.20
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)317 / 29.50336 / 31.20
Evaporative Heating Surface/Cylinder Volume281.60255.81
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation10301161
Same as above plus superheater percentage10301161
Same as above but substitute firebox area for grate area55615429
Power L132922998
Power MT

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